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U.S. ZIP Codes Database 2026

Search by ZIP code, city, county, or state and find clear postal details with maps, time zones, and area code data.

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York County ZIP Codes

Browse all ZIP Codes, cities, and associated area codes registered in York County.

County State ZIP Code City Area Codes
York County PA 17354 Porters Sideling 717
York County PA 17355 Railroad 223, 717
York County PA 17356 Red Lion 223, 717
York County PA 17358 Rossville 717
York County PA 17360 Seven Valleys 223, 717
York County PA 17361 Shrewsbury 223, 717
York County PA 17362 Spring Grove 223, 717
York County PA 17363 Stewartstown 223, 410, 443, 667, 717
York County PA 17364 Thomasville 223, 717
York County PA 17365 Wellsville 223, 717
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About U.S. ZIP Codes

ZIP codes are a United States Postal Service system introduced in 1963 to make mail routing more accurate and efficient. The standard format uses five digits, while ZIP+4 adds four more digits for a more precise delivery segment.

ZIP codes cover the United States, its territories, military mail routes, and other USPS delivery points. This directory organizes that data for practical lookup by ZIP code, city, county, and state.